Question

Write an expression that can be used to find 4 x 275 using mental math and properties of numbers

Answer 1

I would start by breaking apart the 275 into 200, 70, and 5. Then I would multiply 4 by each of those numbers, giving you 800, 280, and 20. Then, I would add those number back together (800+280+20) and that gives you a final answer of 1,100.

The expression that can be used would be...
4(200)+4(70)+4(5)